The oil spewing into the Gulf of Mexico is clearly harming wildlife and the economy of the region, but just how is it affecting human health? It's a question coastal residents and visitors want answered -- but so far, those answers are hard to come by. Although health professionals in Alabama and beyond are monitoring reports of illnesses in the Gulf, they say it could be months or years before the full impact is understood. "A lot of it depends on how long it continues and to what degree," said Tom Miller, assistant state health officer at the Alabama Department...